X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmaterial.cpp;h=1e751a8696d2e1f5bca5aa46c78582e41149f795;hp=0f1e19b9ee4a954f69bb84844e9227110f21709a;hb=1064288b38d8b870601e1cd7393358db6bbb3a0e;hpb=c4533e0d94a273cc10e0530a2953d369c6afbb8e diff --git a/src/material.cpp b/src/material.cpp index 0f1e19b9..1e751a86 100644 --- a/src/material.cpp +++ b/src/material.cpp @@ -39,11 +39,11 @@ namespace { const Value RedundantRook = Value(554); // pair pawn knight bishop rook queen - const int LinearCoefficients[6] = { 1617, -162, -1172, -190, 105, 26 }; + const int LinearCoefficients[6] = { 1824, -162, -1122, -190, 105, 26 }; const int QuadraticCoefficientsSameColor[][PIECE_TYPE_NB] = { // pair pawn knight bishop rook queen - { 7 }, // Bishop pair + { 0 }, // Bishop pair { 39, 2 }, // Pawn { 35, 271, -4 }, // Knight { 7, 105, 4, 7 }, // Bishop @@ -54,12 +54,12 @@ namespace { const int QuadraticCoefficientsOppositeColor[][PIECE_TYPE_NB] = { // THEIR PIECES // pair pawn knight bishop rook queen - { 41 }, // Bishop pair - { 37, 41 }, // Pawn - { 10, 62, 41 }, // Knight OUR PIECES - { 57, 64, 39, 41 }, // Bishop - { 50, 40, 23, -22, 41 }, // Rook - { 106, 101, 3, 151, 171, 41 } // Queen + { 0 }, // Bishop pair + { 37, 0 }, // Pawn + { 10, 62, 0 }, // Knight OUR PIECES + { 57, 64, 39, 0 }, // Bishop + { 50, 40, 23, -22, 0 }, // Rook + { 106, 101, 3, 151, 171, 0 } // Queen }; // Endgame evaluation and scaling functions accessed direcly and not through @@ -113,7 +113,7 @@ namespace { + RedundantQueen * pieceCount[Us][QUEEN]; // Second-degree polynomial material imbalance by Tord Romstad - for (pt1 = NO_PIECE_TYPE; pt1 <= QUEEN; pt1++) + for (pt1 = NO_PIECE_TYPE; pt1 <= QUEEN; ++pt1) { pc = pieceCount[Us][pt1]; if (!pc) @@ -121,7 +121,7 @@ namespace { v = LinearCoefficients[pt1]; - for (pt2 = NO_PIECE_TYPE; pt2 <= pt1; pt2++) + for (pt2 = NO_PIECE_TYPE; pt2 <= pt1; ++pt2) v += QuadraticCoefficientsSameColor[pt1][pt2] * pieceCount[Us][pt2] + QuadraticCoefficientsOppositeColor[pt1][pt2] * pieceCount[Them][pt2];